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The Cisco Catalyst 4948E and 4948E-F Ethernet Switches are the Cisco Catalyst 4900 Series data center switches built from the start to deliver best-in-class, full-featured server-access switching. The switches include identical features except that the Cisco Catalyst 4948E offers front-to-back cooling, and the Cisco Catalyst 4948E-F offers back-to-front cooling. Each switch offers forty-eight 10/100/1000-Gbps RJ45 downlink ports and four 1 and 10 Gigabit Ethernet uplink ports. The switches are designed to simplify data center architecture and operations by offering service provider-grade hardware and software in a one-rack-unit (1RU) form factor optimized for full-featured top-of-rack (ToR) data center deployments.
| WS-C4948E | Catalyst 4948E, opt sw, 48-Port 10/100/1000+ 4 SFP+, no p/s | $15,525.00 |
| WS-C4948E-S | Catalyst 4948E, IPB, 48-Port 10/100/1000+ 4 SFP+, AC p/s | $18,400.00 |
| WS-C4948E-E | Catalyst 4948E, ES, 48-Port 10/100/1000+ 4 SFP+, AC p/s | $23,000.00 |
| WS-C4948E-F | Cat 4948E-F, opt sw, 48x 10/100/1000+ 4 SFP+,no PS,Fr Ext | $15,525.00 |
| WS-C4948E-F-S | Cat 4948E-F, IPB, 48x 10/100/1000+ 4 SFP+, AC PS, Fr Ext | $18,400.00 |
| WS-C4948E-F-E | Cat 4948E-F, ES, 48x 10/100/1000+ 4 SFP+, AC PS, Fr Ext | $23,000.00 |
| WS-C4900M | Base system with 8 X2 ports and 2 half slots | $22,400.00 |
| Feature and Description | Cisco Catalyst 4948 Switch | Cisco Catalyst 4948 10 Gigabit Ethernet Switch | Cisco Catalyst 4900M Switch | Cisco Catalyst 4948E and 4948E-F Switches |
| Environmental | ||||
| Height | 1RU | 1RU | 2RU | 1RU |
| Dimensions (H×W×D) | 1.71×17.3×16.1 in. (4.3×43.9×40.9 cm) | 1.71×17.3×16.1 in. (4.3×43.9×40.9 cm) | 3.5×17.2×17.9 in. (8.9×43.7×45.5 cm) | 1.75×17.5×19.4 in. (4.4×44.4×49.3 cm) |
| Power redundancy | 1+1 AC or DC | 1+1 AC or DC | 1+1 AC or DC | 1+1 AC or DC |
| Unit weight | 16.5 lb (7.48 kg) | 16.5 lb (7.48 kg) | 34.0 lb (15.4 kg) | 19 lb (8.62 kg) |
| Hot-swappable fan | Yes | Yes | Yes | Yes |
| Average and maximum power consumption (in watts [W]) | 176W average | 212W average | 300W average | 230W average |
| 300W maximum | 300W maximum | 446W maximum | 275W maximum | |
| Airflow | Side to back | Side to back | Side to back | Front to back (Cisco Catalyst 4948E) |
| Back to front (Cisco Catalyst 4948E-F) | ||||
| Rack-mounting options | Front and rear mount | Front and rear mount | Four-post rack-side rail mount | Front and rear mount |
| High-performance rear mount | High-performance mount | High-performance rear mount | ||
| Uplink optic types | Four Small Form-Factor Pluggable (SFP) optics | Two X2 (10 Gigabit Ethernet) optics | Eight X2 (10 Gigabit Ethernet) optics | SFP and SFP+ |
| Cisco® TwinGig Converter Module support | No | No | Yes (WS-X4908-10GE only) | No |
| Cisco OneX Converter Module support (X2 to SFP+) | No | No | Yes | No |
| Optics | LH, SX, ZX, and CWDM | LR, CX4, LX4, SR, ER, LRM, ZR, and DWDM | X2: LR, CX4, LX4, SR, ER, LRM, ZR, and DWDM | CWDM, DWDM, |
| SFP+: SR | ||||
| Maximum 10 Gigabit Ethernet (fiber) ports | 0 | 2 (X2) | 24 (X2)* | 4 (SFP+) |
| Switching capacity | 96 Gbps | 136 Gbps | 320 Gbps | 176 Gbps |
| Throughput | 72 million packets per second (mpps) | 102 mpps | 250 mpps for IPv4 | 131 mpps for IPv4 |
| 125 mpps for IPv6 | 110 mpps for IPv6 | |||
| Routes supported | 32,000 | 32,000 | 256,000 | 57,000 |
| MAC addresses | 32,000 | 55,000 | 55,000 | 55,000 |
